I know this has been asked before, but I couldn't locate the thread, so I thought I'd start a new one.
A couple of months ago, I noticed the 990 was runninning with a lot of sputtering. Last week, I was going out to move some rocks and brush with the rear carry-all, but it would only run with the choke fully closed. When I would let loose of the choke control, it would start to die.
Today I pulled it in the garage (less mosquitos!) and pulled the carb off to check it. I've checked everything - vent hole in gas cap is open; gas tank is full to the top; checked spark plug gap; replaced fuel filter; made sure everything was in proper adjustment - runs a little better, but it still won't run with the choke open.
Anyone else have this happen? What might be the cause? And, what is the cure?
Thanks for the help - Rich